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The New Dinosaurs: An Alternative Evolution is a 1988 speculative evolution book written by Scottish geologist Dougal Dixon and illustrated by several illustrators including Amanda Barlow, Peter Barrett, John Butler, Jeane Colville, Anthony Duke, Andy Farmer, Lee Gibbons, Steve Holden, Philip Hood, Martin Knowelden, Sean Milne, Denys Ovenden and Joyce Tuhill. The book also features a foreword by Desmond Morris. The New Dinosaurs explores a hypothetical alternate Earth, complete with animals and ecosystems, where the Cretaceous-Paleogene extinction event never occurred, leaving non-avian dinosaurs and other Mesozoic animals an additional 65 million years to evolve and adapt over the course of the Cenozoic to the present day.

The New Dinosaurs is Dixon's second work on speculative evolution, following After Man (1981), which explored the animals of a hypothetical world 50 million years in the future where humanity had gone extinct. After Man used a fictional setting and hypothetical animals to explain the natural processes behind evolution whilst The New Dinosaurs uses its own fictional setting and hypothetical wildlife to explain the concept of zoogeography and biogeographic realms. It was followed by another speculative evolution work by Dixon in 1990, Man After Man, which focused on a hypothetical future path of evolution of humanity.

Some of Dougal Dixon's hypothetical dinosaurs bear a coincidental resemblance to dinosaurs that were eventually discovered. As a general example, many of Dixon's fictional dinosaurs are depicted with feathers, something that was not yet widely accepted when the book was written.

(Source : Wikipédia)